<template>
  <div class="dashboard-container">
    <div class="app-container">
      <page-tools :show-before="true">
        <span slot="before">共{{ page.total }}条记录</span>
        <template slot="after">
          <el-button size="small" type="warning" @click="$router.push('/import?type=user')">导入</el-button>
          <el-button size="small" type="danger" @click="exportData">导出</el-button>
          <el-button size="small" type="primary" @click="showDialog">新增员工</el-button>
        </template>
      </page-tools>
      <!-- 放置表格和分页 -->
      <el-card>
        <el-table border :data="list">
          <el-table-column label="序号" sortable="" type="index" />
          <el-table-column label="姓名" sortable="" prop="username" />
          <el-table-column label="工号" sortable="" prop="workNumber" />
          <el-table-column label="头像" align="center" width="130">
            <template slot-scope="{row}">
              <img
                slot="reference"
                v-imageerror="require('@/assets/common/bigUserHeader.png')"
                :src="row.staffPhoto"
                style="border-radius: 50%; width: 100px; height: 100px; padding: 10px"
                alt=""
                @click="showQrCode(row.staffPhoto)"
              >
            </template>
          </el-table-column>

          <el-table-column label="聘用形式" sortable="" :formatter="formatEmployment" prop="formOfEmployment" />
          <el-table-column label="部门" sortable="" prop="departmentName" />
          <el-table-column label="入职时间" sortable="" prop="timeOfEntry">
            <template slot-scope="{ row }">{{ row.timeOfEntry | formatDate }}</template></el-table-column>
          <el-table-column label="账户状态" sortable="" prop="enableState">
            <template slot-scope="{ row }">
              <!-- 根据当前状态来确定 是否打开开关 -->
              <!-- <el-switch v-model="row.enableState" /> -->
              <el-tag v-if="row.enableState*1 === 1" size="small" type="success">正常</el-tag>
              <el-tag v-else size="small" type="info">离职</el-tag>
            </template>
          </el-table-column>
          <el-table-column label="操作" sortable="" fixed="right" width="280">
            <template slot-scope="{row}">
              <el-button type="text" size="small" :disabled="!checkPermission('employess-edit')" @click="$router.push(`/employees/detail/${row.id}`)">查看</el-button>
              <el-button type="text" size="small">转正</el-button>
              <el-button type="text" size="small">调岗</el-button>
              <el-button type="text" size="small">离职</el-button>
              <el-button type="text" size="small" @click="assignRole(row.id)">角色</el-button>
              <el-button type="text" size="small" :disabled="!checkPermission('employess-del')" @click="delEmployee(row.id)">删除</el-button>
            </template>
          </el-table-column>
        </el-table>
        <!-- 分页组件 -->
        <el-row type="flex" justify="center" align="middle" style="height: 60px">
          <el-pagination
            background=""
            layout="prev, pager, next,sizes"
            :page-size="page.size"
            :current-page="page.page"
            :total="page.total"
            :page-sizes="[4,6,10]"
            @current-change="currentPage"
            @size-change="sizeChange"
          />
        </el-row>
      </el-card>
    </div>
    <!-- 新增/修改弹出层 -->
    <add-employee ref="showDialog" />
    <!-- 预览弹框 -->
    <el-dialog title="二维码" :visible.sync="showCodeDialog" @close="imgUrl=''">
      <el-row type="flex" justify="center">
        <canvas ref="myCanvas" />
      </el-row>
    </el-dialog>
    <!-- 角色弹出层 -->
    <assign-role ref="assignRole" :show-role-dialog.sync="showRoleDialog" :user-id="userId" />
  </div>
</template>

<script>
import { getEmployeeList, delEmployee } from '@/api/employees'
import EmployeeEnum from '@/api/constant/employees'
import addEmployee from './components/add-employee.vue'
import { formatDate } from '@/filters'
import QrCode from 'qrcode'
import AssignRole from './components/assign-role.vue'
export default {
  name: 'Employees',
  components: { addEmployee, AssignRole },
  data() {
    return {
      list: [],
      loading: false,
      page: {
        page: 1,
        size: 10,
        total: 0
      },
      showCodeDialog: false, // 二维码查看弹框显示控制变量
      imgUrl: '', // 预览头像地址
      showRoleDialog: false, // 角色弹窗
      userId: null // 角色 id
    }
  },
  created() {
    this.getEmployeeList()
  },
  methods: {
    currentPage(value) {
      this.page.page = value
      this.getEmployeeList()
    },
    sizeChange(value) {
      this.page.size = value
      this.getEmployeeList()
    },
    async getEmployeeList() {
      this.loading = true
      const { rows, total } = await getEmployeeList(this.page)
      this.list = rows
      this.page.total = total
      this.loading = false
    },
    // 格式化聘用形式
    formatEmployment(row, column, cellValue, index) {
      // 要去找 1所对应的值
      const obj = EmployeeEnum.hireType.find(item => item.id === cellValue)
      return obj ? obj.value : '未知'
    },
    async delEmployee(id) {
      try {
        await this.$confirm('确认删除员工么')
        await delEmployee(id)
        if (this.list.length === 1 && this.page.page !== 1) {
          this.page.page--
        }
        this.getEmployeeList()
        this.$message.success('删除成功')
      } catch (error) {
        console.log(error)
      }
    },
    // 新增员工按钮
    showDialog() {
      this.$refs.showDialog.showDialog = true
    },
    // 导出excel数据
    exportData() {
      //  做操作
      // 表头对应关系
      const headers = {
        '姓名': 'username',
        '手机号': 'mobile',
        '入职日期': 'timeOfEntry',
        '聘用形式': 'formOfEmployment',
        '转正日期': 'correctionTime',
        '工号': 'workNumber',
        '部门': 'departmentName'
      }
      // 懒加载
      import('@/vendor/Export2Excel').then(async excel => {
        const { rows } = await getEmployeeList({ page: 1, size: this.page.total })
        const data = this.formatJson(headers, rows)
        const multiHeader = [['姓名', '主要信息', '', '', '', '', '部门']]
        const merges = ['A1:A2', 'B1:F1', 'G1:G2']
        excel.export_json_to_excel({
          header: Object.keys(headers),
          data,
          filename: '员工信息表',
          autoWidth: true,
          bookType: 'xlsx',
          multiHeader,
          merges

        })
        // 获取所有的数据

        // excel.export_json_to_excel({
        //   header: ['姓名', '薪资'],
        //   data: [['张三', 12000], ['李四', 5000]],
        //   filename: '员工薪资表',
        //   autoWidth: true,
        //   bookType: 'csv'
        // })
      })
    },
    formatJson(headers, rows) {
      // 首先遍历数组
      // [{ username: '张三'},{},{}]  => [[’张三'],[],[]]
      return rows.map(item => {
        return Object.keys(headers).map(key => {
          if (headers[key] === 'timeOfEntry' || headers[key] === 'correctionTime') {
            return formatDate(item[headers[key]]) // 返回格式化之前的时间
          } else if (headers[key] === 'formOfEmployment') {
            var en = EmployeeEnum.hireType.find(obj => obj.id === item[headers[key]])
            return en ? en.value : '未知'
          }
          return item[headers[key]]
        }) // => ["张三", "13811"，"2018","1", "2018", "10002"]
      })
      // return data
      // return rows.map(item => {
      //   // item是对象  => 转化成只有值的数组 => 数组值的顺序依1赖headers  {username: '张三'  }
      //   // Object.keys(headers)  => ["姓名", "手机号",...]
      //   return Object.keys(headers).map(key => {
      //     return item[headers[key]]
      //   }) // /  得到 ['张三'，’129‘，’dd‘,'dd']
      // })
    },
    // 生成二维码插件
    showQrCode(url) {
      // url存在的情况下 才弹出层
      if (url) {
        this.showCodeDialog = true // 数据更新了 但是我的弹层会立刻出现吗 ？页面的渲染是异步的！！！！
        // 有一个方法可以在上一次数据更新完毕，页面渲染完毕之后
        this.$nextTick(() => {
          // 此时可以确认已经有ref对象了
          QrCode.toCanvas(this.$refs.myCanvas, url) // 将地址转化成二维码
          // 如果转化的二维码后面信息 是一个地址的话 就会跳转到该地址 如果不是地址就会显示内容
        })
      } else {
        this.$message.warning('该用户还未上传头像')
      }
    },
    // 角色管理
    async assignRole(id) {
      this.showRoleDialog = true
      this.userId = id
      await this.$refs.assignRole.getUserDetailById(id)
    }
  }
}
</script>

<style>

</style>
